<template>
  <view v-show="!isLoading" class="container">
    <!-- 商品图片轮播 -->
    <SlideImage v-if="!isLoading" :video="goods.video" :videoCover="goods.videoCover" :images="goods.goods_images" />

    <!-- 商品信息 -->
    <view v-if="!isLoading" class="goods-info m-top20">
      <!-- 价格、销量 -->
      <view class="info-item info-item__top dis-flex flex-x-between flex-y-end">
        <view class="block-left dis-flex flex-y-center">
          <view class="active-tag">
            <text>限时砍价</text>
          </view>
          <!-- 砍价底价 -->
          <text class="floor-price__samll">￥</text>
          <text class="floor-price">{{ active.floor_price }}</text>
          <!-- 商品原价 -->
          <text class="original-price">￥{{ goods.goods_price_min }}</text>
        </view>
        <view class="block-right dis-flex">
          <!-- 销量 -->
          <view class="goods-sales">
            <text>已砍成{{ active.active_sales }}件</text>
          </view>
        </view>
      </view>
      <!-- 标题、分享 -->
      <view class="info-item info-item__name dis-flex flex-y-center">
        <view class="goods-name flex-box">
          <text class="twoline-hide">{{ goods.goods_name }}</text>
        </view>
        <view class="goods-share__line"></view>
        <view class="goods-share">
          <button class="share-btn dis-flex flex-dir-column" @click="onShowShareSheet()">
            <text class="share__icon iconfont icon-fenxiang"></text>
            <text class="f-24">分享</text>
          </button>
        </view>
      </view>
      <!-- 商品卖点 -->
      <view v-if="goods.selling_point" class="info-item info-item_selling-point">
        <text>{{ goods.selling_point }}</text>
      </view>
      <!-- 活动倒计时 -->
      <view v-if="active.is_end == false" class="info-item info-item_status info-item_countdown dis-flex flex-y-center">
        <text class="countdown-icon iconfont icon-naozhong"></text>
        <text>距离活动结束</text>
        <text class="m-r-10">还剩</text>
        <count-down :date="active.end_time" separator="zh" theme="text" />
      </view>
      <!-- 活动已结束 -->
      <view v-if="active.is_end == true" class="info-item info-item_status info-item_end">
        <text class="countdown-icon iconfont icon-naozhong"></text>
        <text>砍价活动已结束，下次记得早点来哦~</text>
      </view>
    </view>

    <!-- 砍价玩法 -->
    <view class="bargain-rules top-nav-bar m-top20 b-f" @click="handleShowRules()">
      <view class="item-title dis-flex">
        <view class="block-left flex-box">
          <text>砍价玩法</text>
        </view>
        <view class="block-right">
          <text class="show-more col-9">查看规则</text>
        </view>
      </view>
      <!-- 砍价步骤 -->
      <view class="rule-simple dis-flex flex-x-around">
        <view class="simple-item dis-flex flex-dir-column flex-y-center">
          <view class="i-number dis-flex flex-x-center flex-y-center">
            <text class="f-30">1</text>
          </view>
          <view class="i-text f-28">点击砍价</view>
        </view>
        <view class="simple-item dis-flex flex-dir-column flex-y-center">
          <view class="i-number dis-flex flex-x-center flex-y-center">
            <text class="f-30">2</text>
          </view>
          <view class="i-text f-28">找人帮砍</view>
        </view>
        <view class="simple-item dis-flex flex-dir-column flex-y-center">
          <view class="i-number dis-flex flex-x-center flex-y-center">
            <text class="f-30">3</text>
          </view>
          <view class="i-text f-28">砍到最低</view>
        </view>
        <view class="simple-item dis-flex flex-dir-column flex-y-center">
          <view class="i-number dis-flex flex-x-center flex-y-center">
            <text class="f-30">4</text>
          </view>
          <view class="i-text f-28">优惠购买</view>
        </view>
      </view>
    </view>

    <!-- 选择商品规格 -->
    <view v-if="goods.spec_type == 20" class="goods-choice m-top20 b-f" @click="onShowSkuPopup()">
      <view class="spec-list">
        <view class="flex-box">
          <text class="col-8">选择：</text>
          <text class="spec-name" v-for="(item, index) in goods.specList" :key="index">{{ item.spec_name }}</text>
        </view>
        <view class="f-26 col-9 t-r">
          <text class="iconfont icon-arrow-right"></text>
        </view>
      </view>
    </view>

    <!-- 商品服务 -->
    <!-- <Service v-if="!isLoading" :goods-id="goodsId" /> -->

    <!-- 商品SKU弹窗 -->
    <SkuPopup v-if="!isLoading" v-model="showSkuPopup" :skuMode="skuMode" :active="active" :goods="goods" />

    <!-- 商品评价 -->
    <Comment v-if="!isLoading" :goods-id="goodsId" :limit="2" />

    <!-- 商品描述 -->
    <view v-if="!isLoading" class="goods-content m-top20">
      <view class="item-title b-f">
        <text>商品描述</text>
      </view>
      <block v-if="goods.content != ''">
        <view class="goods-content__detail b-f">
          <mp-html :content="goods.content" />
        </view>
      </block>
      <empty v-else tips="亲，暂无商品描述" />
    </view>

    <!-- 底部选项卡 -->
    <view class="footer-fixed">
      <view class="footer-container">
        <!-- 导航图标 -->
        <view class="foo-item-fast">
          <!-- 首页 -->
          <view class="fast-item fast-item--home" @click="onTargetHome">
            <view class="fast-icon">
              <text class="iconfont icon-shouye"></text>
            </view>
            <view class="fast-text">
              <text>首页</text>
            </view>
          </view>
          <!-- 客服 (仅微信小程序端显示) -->
          <!-- #ifdef MP-WEIXIN -->
          <button class="btn-normal" open-type="contact">
            <view class="fast-item">
              <view class="fast-icon">
                <text class="iconfont icon-kefu1"></text>
              </view>
              <view class="fast-text">
                <text>客服</text>
              </view>
            </view>
          </button>
          <!-- #endif -->
          <!-- 购物车 (非微信小程序端显示) -->
          <!-- #ifndef MP-WEIXIN -->
          <view class="fast-item fast-item--cart" @click="onTargetCart">
            <view v-if="cartTotal > 0" class="fast-badge fast-badge--fixed">{{ cartTotal > 99 ? '99+' : cartTotal }}
            </view>
            <view class="fast-icon">
              <text class="iconfont icon-gouwuche"></text>
            </view>
            <view class="fast-text">
              <text>购物车</text>
            </view>
          </view>
          <!-- #endif -->
        </view>
        <!-- 操作按钮 -->
        <view class="foo-item-btn">
          <view class="btn-wrapper">
            <view v-if="active.is_start && !active.is_end" class="btn-item btn--main" @click="handleMainBtn(3)">
              <text>{{ isPartake? '继续砍价' : '立即砍价' }}</text>
            </view>
            <button v-else class="btn-item btn--gray">
              <text>{{ active.is_end ? '活动已结束' : '活动未开启' }}</text>
            </button>
          </view>
        </view>
      </view>
    </view>

    <!-- 分享菜单 -->
    <share-sheet v-model="showShareSheet" :shareTitle="goods.goods_name" :shareImageUrl="goods.goods_image"
      :posterApiCall="posterApiCall" :posterApiParam="{ activeId }" />

    <!-- 砍价规则弹窗 -->
    <u-modal v-if="!isLoading" v-model="showRules" title="砍价规则">
      <scroll-view style="height: 610rpx;" :scroll-y="true">
        <view class="pops-content">
          <text>{{ setting.rulesDesc }}</text>
        </view>
      </scroll-view>
    </u-modal>

  </view>
</template>

<script>
  import { getSceneData } from '@/core/app'
  import ShareSheet from '@/components/share-sheet'
  import SkuPopup from './components/SkuPopup'
  import SlideImage from '../../goods/components/SlideImage'
  import Comment from '../../goods/components/Comment'
  // import Service from '../../goods/components/Service'
  import CountDown from '@/components/countdown'
  import * as GoodsApi from '@/api/goods'
  import * as CartApi from '@/api/cart'
  import * as ActiveApi from '@/api/bargain/active'

  export default {
    components: {
      ShareSheet,
      // Shortcut,
      SlideImage,
      SkuPopup,
      Comment,
      // Service,
      CountDown
    },
    data() {
      return {
        // 正在加载
        isLoading: true,
        // 显示/隐藏SKU弹窗
        showSkuPopup: false,
        // 模式 1:都显示 2:只显示购物车 3:只显示立即购买
        skuMode: 3,
        // 显示/隐藏分享菜单
        showShareSheet: false,
        // 显示砍价规则
        showRules: false,
        // 获取商品海报图api方法
        posterApiCall: ActiveApi.poster,

        // 当前活动ID
        activeId: null,
        // 当前商品ID
        goodsId: null,

        // 活动详情
        active: {},
        // 商品详情
        goods: {},
        // 砍价设置
        setting: null,
        // 标记当前用户是否正在参与
        isPartake: null,
        // 砍价任务ID (当前用户参与的话才有值)
        taskId: null,

        // 购物车总数量
        cartTotal: 0,
      }
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad(options) {
      // 记录query参数
      this.onRecordQuery(options)
      // 加载页面数据
      this.onRefreshPage()
    },

    methods: {

      // 记录query参数
      onRecordQuery(query) {
        const scene = getSceneData(query)
        this.activeId = query.activeId ? parseInt(query.activeId) : parseInt(scene.aid)
        this.goodsId = query.goodsId ? parseInt(query.goodsId) : parseInt(scene.gid)
      },

      // 刷新页面数据
      onRefreshPage() {
        const app = this
        app.isLoading = true
        Promise.all([app.getActiveDetail(), app.getGoodsDetail(), app.getCartTotal()])
          .then(() => app.isLoading = false)
      },

      // 获取砍价活动详情
      getActiveDetail() {
        const app = this
        return new Promise((resolve, reject) => {
          ActiveApi.detail(app.activeId)
            .then(result => {
              app.active = result.data.active
              app.setting = result.data.setting
              app.isPartake = result.data.isPartake
              app.taskId = result.data.taskId
              resolve(result)
            })
            .catch(reject)
        })
      },

      // 获取商品信息
      getGoodsDetail() {
        const app = this
        return new Promise((resolve, reject) => {
          GoodsApi.detail(app.goodsId, false)
            .then(result => {
              app.goods = result.data.detail
              resolve(result)
            })
            .catch(reject)
        })
      },

      // 获取购物车总数量
      getCartTotal() {
        const app = this
        return new Promise((resolve, reject) => {
          CartApi.total()
            .then(result => {
              app.cartTotal = result.data.cartTotal
              resolve(result)
            })
            .catch(reject)
        })
      },

      /**
       * 显示/隐藏SKU弹窗
       */
      onShowSkuPopup() {
        this.showSkuPopup = !this.showSkuPopup
      },

      // 显示隐藏分享菜单
      onShowShareSheet() {
        this.showShareSheet = !this.showShareSheet
      },

      // 显示砍价规则
      handleShowRules() {
        this.showRules = true
      },

      // 跳转到首页
      onTargetHome(e) {
        this.$navTo('pages/index/index')
      },

      // 跳转到购物车页
      onTargetCart() {
        this.$navTo('pages/cart/index')
      },

      // 点击主按钮
      handleMainBtn() {
        const app = this
        // 发起新的砍价任务
        if (!app.isPartake) {
          return app.onShowSkuPopup()
        }
        // 已发起砍价则跳转到砍价任务详情页
        app.$navTo('pages/bargain/task', { taskId: app.taskId })
      },

    },

    /**
     * 分享当前页面
     */
    onShareAppMessage() {
      // 构建页面参数
      const app = this
      const params = app.$getShareUrlParams({
        activeId: app.activeId,
        goodsId: app.goodsId
      })
      return {
        title: app.goods.goods_name,
        path: `/pages/bargain/goods/index?${params}`
      }
    },

    /**
     * 分享到朋友圈
     * 本接口为 Beta 版本，暂只在 Android 平台支持，详见分享到朋友圈 (Beta)
     * https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/share-timeline.html
     */
    onShareTimeline() {
      // 构建页面参数
      const app = this
      const params = app.$getShareUrlParams({
        activeId: app.activeId,
        goodsId: app.goodsId
      })
      return {
        title: app.goods.goods_name,
        path: `/pages/bargain/goods/index?${params}`
      }
    },

  }
</script>

<style>
  page {
    background: #fafafa;
  }
</style>
<style lang="scss" scoped>
  @import "./style.scss";
</style>
